package com.fzy.common.encode;

import org.apache.commons.codec.DecoderException;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.codec.binary.Hex;

import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;

public class Base64Util {
    private Base64Util(){}

    private static final String DEFAULT_URL_ENCODING = "UTF-8";
    private static final char BASE62[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz".toCharArray();

    public static String encodeHex(byte input[]) {
        return Hex.encodeHexString(input);
    }

    public static byte[] decodeHex(String input) throws DecoderException {
        return Hex.decodeHex(input.toCharArray());

    }

    public static String encodeBase64(byte input[]) {
        return Base64.encodeBase64String(input);
    }

    public static String encodeUrlSafeBase64(byte input[]) {
        return Base64.encodeBase64URLSafeString(input);
    }

    public static byte[] decodeBase64(String input) {
        return Base64.decodeBase64(input);
    }

    public static String encodeBase62(byte input[]) {
        char chars[] = new char[input.length];
        for (int i = 0; i < input.length; i++) {
            chars[i] = BASE62[(input[i] & 0xff) % BASE62.length];
        }

        return new String(chars);
    }


    public static String urlEncode(String part) throws UnsupportedEncodingException {
        return URLEncoder.encode(part, DEFAULT_URL_ENCODING);

    }

    public static String urlDecode(String part) throws UnsupportedEncodingException {
        return URLDecoder.decode(part, DEFAULT_URL_ENCODING);

    }

}
